Check-valve for locomotives.



PATENTED JULY 4, 1905 3'. M. OOH-ELDER, JR. GK VALVE FOR LOCOMOTIVES.

APPLICATION FILED APR. 2, 1904. RENEWED APR. 28,1905.

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inrrlnn llil A elf I a SPECIFICAJI'ION forming part of Letters Patent No. 793,'.?69, dated July ll, 1905.

Application filed April 2, 1904:. Renewed April 28, 1905. Serial No. 257,925.

To (t/Z whom 7 vim/y concern.-

.lie itknown that l lou N M. (ionrntnnnalr. a citizen oi the United titatcs, residing at Ehnwood Place, in the county ol Hamilton and titate o'l Ohio, have invented a new and useful ztrticle oil? lVlanulacture, o'l. which the following a specification.

l r'ly invention relates to check-valves For use on loconmtives, in which certain new and practical l'eatiin'es are employed; and the objects 01' my invention are, lirst, to provide a checkval to for locomotives which may be for either the right or left side thereol; second, to employ such means with a check-valve as will enable the operator to grind in the valve without drawing the lire or letting water below the check by using the shut-oil, as is necessary by the use ol the locomotive checkvalve now in use; third, to provide a locomotive check-valve which may be used with hose connection on the opposite side 01 the check for the purpose of [illing a dead engine with hot water, and thus avoid the cracking ol the lire-box, as is :lirequently done by using cold water, as is necessary in the present method; fourth, to provide a eheck-valve and an niliary parts thereto to enable the operator to repair the valve without delay by the anxiliary means to shut oil the water between the boiler and the check-valve; lit'th, to provide a eheclevalve with auxiliary parts thereto, so as to enable the operator to set the alve without depending on jarring it by a hammer, as is the present method, but simply to shut the water oil from the boiler, remove the check-brnmet, take out the check, and remove the obstruction witl'iout any dolay or imminent danger ol breaking the valveboa; sixth, to provide a checkvalve with auxiliary parts thereto, so as to enable the operator in event the check becomes inoperative to shut ell the auxiliary valve and prevent the steam from llowing back into the water-tank, and thus heating so the op posite injector will not work, as is the present WHJOI/I/N o en/Hulaseventh, to provide a check-valve and auxiliary parts thereto, so as to prevent the hose used between the engine and water-tank from being damaged or blown oll in case the check-valve does not seat itself and cannot be gotten down to its proper place or in event it is broken. in case the valve in present use gets up and cannot be seated the water in the tank gets hot and prevents the injector on the opposite side lrom working, and often the water gets so low in the boiler that the lire must be drawn and the helpless engine towed to the repair-shops, causing much delay and inconvenience and great OXDGHSO. My invention obviates all of this. it prevents the backllow of water and, further, prevents the loss ol water From the boiler and prevents any damage being done to the injector on the opposite side of the engine, and hence saves time, labor, and expense. I. attain these objects by the mechanism described in this specification and illustrated by the accoin nmying drawings, in which---- Figure l is a top plan view. llig. 2. a section view on line 2 2 of Fig. 1.

Similar letters rel er to similar parts in both the views.

in Fig. 1 a top plan view of the valve is shown, n being the connecting inlet end ol' the valve-body. and c, respectively, show the left-hand and the right-haml connecting ends, imlicating how the valve may be used on either side of the engine. By capping c and engaging 7) adapts the valve for use on the left side of the locomotive, and by using the same cap, taken from 0, put onto l1, adapts the valve tor use on the right side of the lecomotive. '.l.his construction oi a check-valve will dispense with the right and left valves now in use. ll is the body oi. the valve. M is the check-bonnet. ll is the valve wheel or handle.

in Fig. 2, ll. shows the body 0]? the valve. B shows the valve-bonnet. U is thesl'vullingnut. D is the packing in the stullinganit. E is the valve-stem. .h is the valve-disk. in? is the disk-nut. ll is the valve-stem wheel or handle. .l shows the engagement ol the screw-tl'n-eaded stuliing-mit and the threaded stem end of the valves lmm'iet. low VZLlVP'SOflll, on which the base end of the valve-disk rests. h'. is a screw threademl nipa drip," and in the event of any ordinary J is the hol.

foreign substance preventing the seating of the valve it may be easily removed by opening the cock and allowing water to run out, tending to produce a vacuum at the base of the valve-disk. M is the check-bonnet to the float-disk N. O is the engagement of the screw-threaded points of the check-bonnet M and the body of the valve A. N is a float cheek-disk. I is the chamber into which the check-disk recedes when forced by the flow of water and lifted from its bearings at Q. R is the water-channel, and the arrows indicate the course the water takes through this channel.

The utility of my invention is at once apparent. In practice 7) or c is connected to the water-intake. This [low of water is governed by the floatingcheck-disk N. Valve-disk F is always resting, lifted away from its seat, to permit the flow of water through the channel R; but the check-disk beingsuseeptible to interference by small articles of scale or small obstacles is not wholly reliable, nor is it, for these reasons, always positive in its action. The seating of this check-disk is a matter of the greatest mechanical precision. The smallest particle of substance, a minute scale, or speck of sand adhering to the check-disk or to its walls will prevent its perfect operation. In the present method this is a frequent trouble. My invention enables the operator to almost instantly remove the obstacle or to correct the imperfect operation of the checkdisk by merely shutting the valve-disk F, which is opened and closed in the ordinary manner of opening and closing such valves. Shutting or closing valve F stops the return flow of water from the boiler. Check-bonnet M is then removed. Check-disk N is cleaned or the obstacle is removed from either the check-disk or its wall-seats. The check-bonnet M is replaced and the usual trouble, loss of time, expense, &c., have been averted.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

A shut-off valve F, an actuatingstem E thereto a disk-nut G engaging said stem, a stufling-nut C, thereto and the packing I) therein, suitably adjusted in the body A thereof, in combination with a check-disk N, a cheek-bonnet M thereon, a check-disk chamber I, therefor located in the water-channel B, said water-channel entering at 7) and 0 respectively and converging in the valve-body A, and terminating at a substantially as described and for the purpose specified.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses. J

J. M. COFFELDER, JR.

IVitnesses:

L. \I. BENEDICT, (J. S. SPARKS. 

